Two-tier roof for a bird cage



FIG. 1 is a perspective view of a two-tier roof for a bird cageaccording to my new design.

FIG. 2 is a top view of the two-tier roof for a bird cage as in FIG. 1.

FIG. 3 is a lengthwise side view of the a two-tier roof for a bird cageas in FIGS. 1-2; and,

FIG. 4 is a side end view of the bird cage as in FIGS. 1-3.

The ornamental design for a two-tier roof for a bird cage, as shown.